colourful green light yellow. The appearance is yellow powder. 20 ℃ in the solubility of 200 g/L. After printing tonal for colourful green light yellow, iron ion in the dark colored, copper ions in A red light is dark, dye printing the biggest strength for 100, printing paste stability over 28 days, the neutral and alkaline white are A level. When solution to add 30 g/L salt solution, solubility reduced to 160 g/L. Used for cotton or viscose fiber dyeing and printing, more used for cotton and viscose fabric printing. Can also be used for wool, silk or chlorinated emphasizes polyester/cotton blended fabric printing. Suitable for solid color, high temperature steam quickly evaporate, rapid steaming, wet show color and rolling-volume process printing.